Electric hammer.



V* E. LANE.

ELECTFHC HAMMER.

APPLlcATIoN FILED AUG.6.1'917.

f MN' AM f the member will be shifted inwardly after each blow so as toagain dispose the member 1G in the -path of the members 13. iV/hen thetool is not in use and the implementis held substantially in theposition illustrated,

the block 15 will dropdown of its ownl weight so' as to withdraw themember 16 from the path of the members 13. Thus without any manipulationother than with- `v drawing the device from the Work and holding it inits natural position, the transmission of hammer blows to the tool maybe discontinued without stopping'v rotation of the motor. Y

ln .Fig. 3 there is illustrated a slight modification of the inventionconsisting in subjecting' the member 15 to the action of a coiled spring23 which tends to force said member inwardly and return the member 16into the path of the members 13 after each hammer blow.

What I claim as' my invention is:

1. A hammer comprising a casing, am'otor therein comprising a stator anda rotor, and a strikingmember rot-tively driven by and partiallyembracing said motor.

A hammer comprising a casing, a motor therein and a striking memberrotatively driven by the motor and having an annular outer portionsurrounding the motor.

3. i hammer comprisinga casing having an annular interior flange, amotor within the casing having its iield yoke formed by a lateralprojection from said flange, and a striking member rotatively driven bythe' motor and `having an annular outer portion surrormding said fieldyoke. y

e. A hammer comprising a casing, u motor therein, a striking memberhaving an annular portion surrounding the motor and having a pluralityof impact members carried by said annular portion and having anengag-ement with the casing for transmitting re-actions ol' the hammerblows directly thereto. l

5. i hammer comprising a. casing having inmate an interior annulargroove, a motor in said casing, and a striking member driven .by saidmotor having an annular portion en gaged in said groove and carrying aplurality of impact members retained by the walls .of said grooveagainst lateralv displacement.

6. A hammer comprising a casing, a motor therein, a'striking memberrotatively driven by Saidimotor, and a plurality of impactrollersmounted peripherally in the striking member and' projecting outwardlythere from, said rollers being restrained against lateral displacementby the walls of the casing.

7. A hammer comprising a portable casing, a motor mounted in saidcasing, a striking member Within the casing driven by said motor, amember radially carried by the casingvto receive the hammer blows, and ahandlefupon the casing in diametrically opposed relation to said member.

8. A hammer comprising a portable casing having a substantial radialextension, formed with a radial bore and constituting a tool socket, astrikingmember mounted'.

within said casing, a plurality of impact members rotatively carried bythe striking the motor and having anannuiar outer portion surroundingsaid field yoke.

10. A hammer comprising a cylindrical casing having a radial extension',a motor within said casing ina symmetricalrelation lto the axis of saidextension, a member sldably mountedin said extension, and a strikingmember Within the casing rota. tively driven by said motor, and havingan annular portion surrounding theV motor engageable with said slidingmember to actuate the latter outwardly.

In testimony whereof I vieron n Linn:

aiiix my signature.

